Bone filler release device
A technology for releasing device and bone filler, which is applied in the field of medical devices and can solve the problems of increased risk of bone cement leakage, leakage of bone cement, and enlargement of bone cement.
Pending Publication Date: 2020-06-30
SHANGHAI KINETIC MEDICAL
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Problems solved by technology
In addition, during the expansion of the balloon, the density of the cancellous bone in the vertebral body will also change. At this time, the pressure in the balloon will increase significantly, and there is a risk of breaking the outer wall of the vertebral body. If there are cracks in the peripheral wall of the vertebral body , the risk of further fracture of the vertebral body will increase during the balloon inflation process. At this time, the risk of bone cement leakage during the injection of bone cement will greatly increase, and the risk of bone cement leakage still exists
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[0033] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0034] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.
[0035] see figure 1 , the bone filling material release device of Embodiment 1 includes a plurality of blades 11 and a capsule body 10 with an injection port. ...
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The invention discloses a bone filler release device. The bone filler release device comprises a plurality of blades and a capsule body with an injection opening, wherein a plurality of through holesare arranged on the capsule body; the plurality of the blades are connected with the capsule body at the corresponding through holes to cover the corresponding through holes; an opening is arranged oneach blade; the hole diameter of each opening can be gradually increased along with the increase of the internal pressure of the capsule body; and / or the different blades can be disconnected from thecapsule body under the action of preset external force of different sizes. The bone filler release device provided by the invention has the following beneficial effects: the vertebral body height recovery effect can be improved, and bone filler leakage can be effectively avoided.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a bone filler releasing device. Background technique [0002] Currently, percutaneous vertebroplasty and percutaneous kyphoplasty are commonly used methods to deal with osteoporotic vertebral compression fractures, among which percutaneous vertebroplasty is more widely used. Percutaneous vertebroplasty establishes a channel and injects bone cement into the vertebral body to provide sufficient support between the trabecular bones in the vertebral body, so as to ensure that no compression fractures and pain occur in the diseased vertebrae. At the same time, in order to reduce the risk of bone cement leakage, it is generally used to inflate the balloon first to form a cavity, and then perfuse the bone cement to achieve the effect of low-pressure perfusion of bone cement, and finally reduce the leakage rate of bone cement, or through Bone cement is used to fill the bone ...
Claims
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IPC IPC(8): A61B17/88
CPCA61B17/8805A61B17/8855
Inventor 王筱凡郭忠祎许婷婷宋月华杨丽张荔
Owner SHANGHAI KINETIC MEDICAL